Analysis of Metal Contamination and Bioindicator Potential of Predatory Fish Species Along Contas River Basin in Northeastern Brazil

Abstract: Freshwater ichthyofauna from Brazil Northeast region was considered as being poorly known until recent years, with a considerable number of publications becoming available in the last decade. The present study provides an inventory of freshwater fish species from the Paraíba do Norte River basin located in Paraíba State, Brazil. This inventory is intended to contribute to the of knowledge to the regional fish diversity, pre-transposition of the São Francisco River. Collecting data was obtained from ichthyological databases of both national and foreign institutions. A total of 47 freshwater fish species are registered within the Paraíba do Norte River basin, represented by 38 genera, 20 families and six orders. Characiformes, comprising 47% (22 species), Cichliformes, and Siluriformes are among the most representative orders, 19% (9 species) each, of total recorded species. Seven species of Cichliformes are reported as introduced species in this basin. Cyprinodontiformes and Gobiiformes also registered in this region and correspond to 5% (two species) and Gymnotiformes, Perciformes and Synbranchiformes, 2% (one species each) of total recorded species. Paraíba do Norte River basin stands out in the current national scenario as it comprises the first region from the Mid-Northeastern Caatinga freshwater ecoregion to receive water from the transposition of the São Francisco River. The current inventory is important as it provides scientific data related to the ichthyofauna of Paraíba do Norte River basin prior to the commencement of the river transposition process. An identification key is also given for the freshwater fish species of the region.

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Fishes from the Itapecuru River basin, State of Maranhão, northeast Brazil

Brazilian Journal of Biology ◽

10.1590/s1519-69842011000300006 ◽

2011 ◽

Vol 71 (2) ◽

pp. 375-380 ◽

Cited By ~ 11

Author(s):

MC Barros ◽

EC Fraga ◽

JLO Birindelli

Keyword(s):

River Basin ◽

Fish Species ◽

Amazon Basin ◽

Fish Fauna ◽

Large River ◽

Northeastern Brazil ◽

South American ◽

Northeast Brazil ◽

Number Of Species ◽

Brazilian State

The Itapecuru is a relatively large river in the northeastern Brazilian state of Maranhão. During several expeditions to this basin, we collected 69 fish species belonging to 65 genera, 29 families and 10 orders. Characiformes and Siluriformes were the orders with the largest number of species and Characidae, Loricariidae, Cichlidae, Auchenipteridae and Pimelodidae were the richest families. About 30% of the fish fauna of the Itapecuru basin is endemic or restricted to northeastern Brazil. Just over a fifth (22%) of the species is also known to occur in the Amazon basin and only a few are more widely distributed in South American.

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CHARACTERISTICS OF FREE-RADICAL PROCESSES IN THE ORGANISMS OF SOME PREDATORY FISH SPECIES IN DIFFERENT SEASONS OF THE YEAR

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY SERIES FISHING INDUSTRY ◽

10.24143/2073-5529-2017-1-117-123 ◽

2017 ◽

pp. 117-123

Author(s):

Nikolay Aleksandrovich Pudovkin ◽

Peter Vladimirovich Smutnev

Keyword(s):

Fish Species ◽

Catalase Activity ◽

Perca Fluviatilis ◽

Selenium Concentration ◽

The Body ◽

Predatory Fish ◽

Volga River ◽

Silurus Glanis ◽

Average Value ◽

Pike Perch

The authors of the article have studied the content of the elements of anti-oxidant system (malondialdehyde, catalase, selenium) in tissues of the internal organs (gills, intestine, muscles, liver, swimbladder, scales) in some species of predatory fish (pike Esox lucius (L., 1758), perch Perca fluviatilis (L., 1758), pike-perch Sander lucioperca (L., 1758), catfish Silurus glanis ) widespread in the basin of the Volga river in the Saratov region. The lowest concentration of malondialdehyde in organisms of the studied fish species is observed in fall and winter; the highest - in spring and summer. Catalase activity in gills tissue of a pike raised in 11.8%, cat-fish - 9.1%, pike-perch - 7.5%, perch - 7.8%. In fall (compared to winter) enzyme activity lowering in gonads of pike-perch makes 16.3%, in gonads of perch - 14.4%. In other tissues there were not observed any evident changes of catalase activity. Fish species under consideration are listed according to the average value of selenium concentration in organisms, µg/g: pike (0.208) > catfish (0.207) > pike-perch (0.196) > perch (0.178). According to the average value of the selenium accumulation in the body in different season all the studied species can be placed in the following order, µg/g: winter-pike (0.132) > pike-perch (0.136) > perch and catfish (0.142); spring - pike-perch (0.190) > perch (0.191) > pike (0.208) > catfish (0.209); summer - perch (0.186) > pike-perch (0.190) > catfish and pike (0.203); autumn - perch (0.193) > pike-perch (0.268) > > catfish (0.274) > pike (0.289).

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Length-weight relationships for five endemic fish species in the upper Yangtze River basin, China

Journal of Applied Ichthyology ◽

10.1111/jai.12824 ◽

2015 ◽

Vol 31 (5) ◽

pp. 961-962

Author(s):

L. Li ◽

H. Du ◽

L. Ren ◽

J.M. Wu ◽

Q.W. Wei

Keyword(s):

River Basin ◽

Fish Species ◽

Yangtze River ◽

Yangtze River Basin ◽

Upper Yangtze River ◽

Endemic Fish ◽

The Upper Yangtze River

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Patterns of fish species richness in the Seine River basin, France

Hydrobiologia ◽

10.1007/bf00006595 ◽

1993 ◽

Vol 259 (3) ◽

pp. 157-167 ◽

Cited By ~ 73

Author(s):

Thierry Oberdorff ◽

Eric Guilbert ◽

Jean-Claude Lucchetta

Keyword(s):

Species Richness ◽

River Basin ◽

Fish Species ◽

Seine River ◽

Seine River Basin

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A description of mercury in fishes from the Madeira River Basin, Amazon, Brazil

Acta Amazonica ◽

10.1590/s0044-59672008000300006 ◽

2008 ◽

Vol 38 (3) ◽

pp. 431-438 ◽

Cited By ~ 21

Author(s):

Wanderley Rodrigues Bastos ◽

Mauro de Freitas Rebelo ◽

Márlon de Freitas Fonseca ◽

Ronaldo de Almeida ◽

Olaf Malm

Keyword(s):

Body Weight ◽

River Basin ◽

Fish Species ◽

Temporal Trends ◽

Migratory Fish ◽

Madeira River ◽

Interspecies Variability ◽

Total Hg ◽

Madeira River Basin ◽

Hg Accumulation

Over the last 20 years several projects carried on the Madeira River basin in the Amazon produced a great amount data on total Hg concentration in different fish species. In this paper we discuss temporal trends in Hg contamination and its relation to body weight in some of those fishes, showing that even within similar groups, such as carnivorous and non-migratory fish, the interspecies variability in Hg accumulation is considerable.

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COMMERCIAL FAUNA OF WA-TERBODIES IN THE MOSCOW RIVER BASIN IN THE SECOND HALF OF THE 18th CENTURY

Transactions of Papanin Institute for Biology of Inland Waters RAS ◽

10.47021/0320-3557-2021-94-112 ◽

2021 ◽

pp. 94-112

Author(s):

N. Ozerova

Keyword(s):

River Basin ◽

Fish Species ◽

18Th Century ◽

Commercial Fish ◽

Acipenser Ruthenus ◽

Land Survey ◽

Ancient Times ◽

In The Beginning ◽

Almost All ◽

Moscow River

Based on the data from economic notes to the General Land Survey, the ranges of commercial fish and crayfish species that inhabited waterbodies of the Moscow River basin in the second half of the 18th century are reconstructed. Eighteen maps showing the distribution of 22 fish species, including Acipenser ruthenus L., Abramis brama L., Barbatula barbatula L., Lota lota L., Sander lucioperca L. and others are compiled. Comparison of commercial fish species that lived in the Moscow River basin in the second half of the 18th century with data from ichthyological studies in the beginning of the XXI century and materials of archaeological surveys shows that almost all of these species have lived in the Moscow River basin since ancient times and have survived to the present day.

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The issue of assessment of efficiency of works on land reclamation fisheries in inland waters of Russia

Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries) ◽

10.33920/sel-09-2108-01 ◽

2021 ◽

pp. 8-20

Author(s):

Andrey Dmitrievich Bykov ◽

Svetlana Yuryevna Brazhnik

Keyword(s):

Fish Species ◽

Land Reclamation ◽

Long Term Results ◽

Predatory Fish ◽

Federal State ◽

Inland Waters ◽

Ecological Group ◽

Spawning Grounds ◽

Commercial Fish

The article considers the issue of assessing the long-term results of work on fisheries reclamation in inland waters of fisheries significance in Russia, carried out by the branches of the Federal State Budgetary Institution “Glavrybvod” on the state task in terms of their effectiveness. The relationship between dredging and clearing of watercourse beds and the dynamics of the number of producers of semi-navigable and non-aquatic fish in these rivers during spawning migrations has not been established. With long-term mowing of wetland vegetation in the shallow waters of reservoirs, deltas of large rivers and estuaries, there is no increase in their commercial fish productivity. A number of examples show the opposite effect of this type of work, which leads to a local deterioration of the ecological state of these reservoirs. At the same time, the repeatedly proven method of combating higher aquatic vegetation in the reservoirs of the south of Russia in low water conditions as biomelioration, based on the introduction of fish, consumers of autotrophic products by regional branches of the Federal State Budgetary Institution “Glavrybvod” is practically not used. When installing artificial spawning grounds in the littoral zone of reservoirs, regular ichthyological monitoring of the effectiveness of spawning on them is not carried out. There are no reliable data confirming the significant positive impact of artificial spawning grounds on the population dynamics of commercial fish species of the limnophilic ecological group under conditions of significant spring water level depletion in Russian reservoirs. When catching predatory and low-value fish species in water bodies, legal obstacles arise due to the fact that the volume of seizure of predatory fish includes commercial objects for which the ODE is established annually and their catch is already carried out according to industrial quotas.

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